Diagnosis
You want to change items on the valid-from date.
You either entered this date directly on the initial screen in thefield Valid from, or the system determined the date from thechange number you entered on the initial screen.
As none of the selected items is valid on &V1&, you cannot change theseitems on this date and therefore cannot allocate any of them to anoperation.
You have to change the validity period of the items, defined on theitem overview screen by the fields Valid from and Validto or the change number.

Procedure
If you want to allocate these items to an operation, make the changewithin the validity period of the items.
There are two ways of doing this:

• If the BOM has not yet been changed with history (with reference to a
change number), choose the valid-from date of the items as thevalid-from date on the initial screen.

• If the BOM has already been changed historically, make the change using
a change number.
Choose a change number which has a valid-from date within the validityperiod of the items: the selected items may already have been enteredor changed with reference to a change number.